Employee Benefit Plans	12 Months Ended
	Jan. 29, 2022
Retirement Benefits, Description [Abstract]
Pension and Other Postretirement Benefits Disclosure [Text Block]	Employee Benefit PlansWe have two qualified defined contribution retirement plans, the GapShare 401(k) Plan and the GapShare Puerto Rico Plan (the “Plans”), which are available to employees who meet the eligibility requirements. The Plans permit eligible employees to make contributions up to the maximum limits allowable under the applicable Internal Revenue Codes. Under the Plans, we match, in cash, all or a portion of employees’ contributions under a predetermined formula. Our contributions vest immediately. Our matching contributions to the Plans were $46 million, $42 million, and $46 million in fiscal 2021, 2020, and 2019, respectively.We maintain the Gap, Inc. Deferred Compensation Plan, which allows eligible employees to defer base compensation and bonus up to a maximum percentage, and non-employee board members to defer receipt of a portion of their board compensation. Plan investments are directed by participants and are recorded at fair market value and designated for the DCP. The fair value of the Company’s DCP assets is determined based on quoted market prices, and the assets are recorded within other long-term assets on the Consolidated Balance Sheets. As of January 29, 2022 and January 30, 2021, the assets related to the DCP were $40 million and $43 million, respectively, and were recorded within other long-term assets on the Consolidated Balance Sheets. As of January 29, 2022 and January 30, 2021, the corresponding liabilities related to the DCP were $45 million and $44 million, respectively, and were recorded within other long-term liabilities on the Consolidated Balance Sheets. We match all or a portion of employees’ contributions under a predetermined formula. Plan investments are elected by the participants, and investment returns are not guaranteed by the Company. Our matching contributions to the DCP in fiscal 2021, 2020, and 2019 were not material.